Home / 25,454.40-38,189.67-11,426.46

Finding the Fourth Proportional to 25,454.40, 38,189.67 and 11,426.46

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Solution

The fourth proportional to 25,454.40, 38,189.67 and 11,426.46 is: 17,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,454.40 : 38,189.67 = 11,426.46 : x
  2. Step 2: Convert to fraction form
    25,454.40/38,189.67 = 11,426.46/x
  3. Step 3: Cross multiply
    25,454.40x = 38,189.67 × 11,426.46
  4. Step 4: Simplify right side
    25,454.40x = 436,372,736.67
  5. Step 5: Solve for x
    x = 436,372,736.67/25,454.40
  6. Step 6: Final answer
    x = 17,143.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.